Combined paper punching and folding machine



Get. i935. F. RQEDER Y COMBINED PAPER PUNCHING AND FOLDING MACHINE Filed Jn. 22, 1934 2 sheets-sheet 1 QZQJZF 30 @QI L 1935.

F. ROEDER 2,016,052

COMBINED PAPER PUNCHING AND FOLDING MACHINE Filed Jan. 22, 1934 2 Sheets-Sheet 2 Patented Oct. 1, 1935 UNITED STATES PATENT OFFICE COMBINED PAPER PUNCHING AND FOLDING MACHINE Fritz Roeder, Berlin, Germany 410 Claims. Q01. 164-91) My invention relates to a combined paper punching and folding machine in which punching means are provided for making the perforations.

It is an object of my invention to provide a machine 'of the type referred to which is selectively operable as a'punching and as a folding machine. To this end, in addition to the punching means, I arrange mechanism for slitting the sheets to be connected and for folding the tongues punched from the sheets, so as to connect the sheets through the medium of the tongues, as is old in the art. In combination with the means for punching, and with the mechanism for connecting the sheets, I provide mechanism for rendering inactive the connecting means if it is desired to use the machine for perforating only.

A machine according to my invention is preferably designed like the usual paper-perforating devices for office work but in addition to punches of the usual devices it has a paper-connecting mechanism. The usual handle is also provided for operating the machine and, if the machine is to be used for connecting sheets, the punching means and the connecting mechanism perform their full stroke while, if the device is to be used for perforating only, the connecting mechanism is arrested so that it becomes inactive and, at the same time, limits the stroke of the punching means as required for perforating.

It is another object of my invention to provide means for holding down on the base of the machine the paper to be treated.

To this end, I provide a paper-holding movable bar which is applied to the upper face of the sheet, or sheets, on the base by a spring. I further provide links with slotted eyes operatively connected to the handle by which the machine is operated for retracting the bar. By these means, the bar is free to bear on the paper under resilient pressure when the handle is depressed, but is retracted when the handle is released and returned to its initial position by the usual springs.

In a preferred embodiment of my machine, I provide a slide as the means for converting the operation of the machine. This slide is preferably mounted in the hollow base of the machine and has two sets of holes. The holes of one set are so large as to permit the punches and the connecting mechanism to pass, so that,if the holes of this set are placed in registering relation 50 to the punching means and connecting mechanism, the machine connects the sheets. The holes of the other set are so small as to permit only the cutting edges of the punches to pass While the connecting mechanism is retained and 55 rendered inactive. Means such as a spring catch are provided for holding the slide in its two final positions in which either the one or the other set of holes registers with the aforesaid means, and

it will be understood that the machine perforates and connects the sheets if the larger holes are pre- 5 sented, and that it only perforates the sheets, or

a sheet, if the smaller holes are presented to the punching and connecting means.

In the accompanying drawings, a machine embodying my invention, and sheets on which it has 10 performed its operation, are illustrated by way of example.

In the drawings Fig. l is a perspective illustration o-f the machine, 1

Fig. 2 is a section on the line II-II in Fig. 1, showing the parts of the machine in their initial positions,

Fig. 3 is a plan view'of the machine,

Fig. 4 is a section on the line IV-IV in Fig. 2, 20

Fig. 5 is a plan view of the hollow base ofthe machine, viewed from below and showing its lid open,

Figs. 6 and '7 are sections on the line II-II in Fig. l, like Fig. 2, but show, respectively, the positions of the parts after performing a connecting operation, and after performing a punching operation,

Fig. 8 shows two connected sheets, and

Fig. 9 shows a punched sheet.

The machine which will be described by way of example, is similar to a perforating device of the usual type. It has the usual hollow base I, with a hinged lid 2, for the reception of the punchedout chips. The lid is held in closed position by 3,. a spring catch 3 engaging in a hole il of the base. o

Two parallel brackets 5 are mounted on the base I, and the shaft 6 on which the handle l is mounted through the medium of two extensions or lugs l', is supported by the brackets 5. The 40 extensions `l' h'ave slotted holes 8, Figs. 2, 6, and 7, for engaging the shaft 6. A pair of flat springs 9 are secured on the base I and, with their free ends, engage a stay I0 in the handle 1. The upward movement of the handle into its initial position as shown in Fig. 2, is limited by the paperholding bar I3, as will be described below. An indicator II which serves for marking the central position between the two holes in a sheet, is secured to the base I but obviously might be a tongue punched from the base.

The positions of the two sets of punching means and connecting mechanism are indicated by the numeral I8, it being noted, however, that the means and mechanisms may be covered f5 by a casingY I4, as shown at the right in Fig. 1.

CTI

` curvedk spring I2.

The punches 23, of U section, are guided in lugs l and I5 of the brackets 5. The lower lugs I6 at the same time serve as abutments for the ends l5 of the paper-holding bar I3. Only one of the ends i5 is shown in Fig. l but obviously, the other end of the bar is similar. The bar I3 has two holes I3 for admitting the ends of a slightly The ends of the spring are forked and the lower lug I2 of every fork engages below the plate I3 while two upper lugs I2 bear on the plate from above, Fig. 3. The central portion of spring I2 is supported by a crooked portion of the indicator II. Links I4 which are preferably the tongues punched out of the bar I3 when making the two holes I 3', are suspended on the stay I@ of the handle 'I with slotted eyes I4.

The lower lugs I 5, like the upper lugs I9, 0f

the brackets 5, have holes for the punches to slide in, and corresponding holes are formed in the two ends l5 of the bar I3. The upper lugs i9 have extensions i9 which are integral with the rear ends of the lugs and engage the punches 23 with their forked lower ends. In this manner, the punches are guided in the holes of lugs I6 and I 9, and additionally by the forks of extensions I9.

The U section of punches 2U is best seen in Fig. 3 which figure also shows theends of the stay lll engaging the punches. The lower ends of the punches are inclined, and their cutting edges are formed partly by the closed ends of the U sections, and partly by the set-back portions of their shanks, Fig. 2. A folder 24, with an upper point and a lower point 25, is mounted to oscillate about-a pin 23 in every punch 2i), and a slightly curved spring 2l in every punch tends to hold the folder in the substantially vertical or initial position of Figs. 2 and 7. A dog 48 is provided per folder on the ends I5 of the bar I3 for cooperation with the upper point 25 of the folder, as will be described below.

A knife 25 for forming the slit in the sheet through which the punched-out tongue is threaded, is mounted to slide on the open rear end of every punch 25 and guided in vertical direction by the fork at the lower end of extension Near its lower end, the knife 28 has a hole 29 to clear the points 25, 25 of the folder 24, Fig. 6, and near its upper end it has two parallel slots 3l in which engage lugs 33 on the shanks of the corresponding punch 25, the slots being longer than the lugs. A spring 32 is connected to the punch 25 at 33, and to the knife 28 at 34. Below every punch, the base I has an opening 4I in its top plate which must at least be as large as the holes 33 in the changing-over slide 35 which will now be described. The lower lugs I6 on the brackets 5V and the ends l5 of the bar I3 have holes for the knives 28.

The slide 35 is inserted in a recess or track in the top plate of the base I, so that its upper face is flush with the upper face of the top plate, and the slide is supported by a plate 35 below the top plate, as best seen in Fig. 5. The slide, as mentioned, has two sets of holes. The larger holes 39 permit the punching and folding means to pass. The smaller holes permit to pass only the Vfront portion of the cutting edges on the punches 25 while the knives 23 are retained by the slide 35. A cam 4I' is arranged on the lower' face of the slide 35. The cam is L shaped, as seen in Figs. 2, 6, and 7, and its vertical portion extends through a ,hole` 43 in the supporting plate 35. A spring 42 is mounted on the suplporting plate 35' which spring, as viewed in Figs.

VThe two nal positions of the slide 2, 6, and 7, has the shape of the letter Z, its vertical portion cooperating with one of the inclined side faces of cam 4I'. In Fig. 5, the handle 36 is pulled out and the small holes 4U in the slide are in line with the punches. In this 5 position, the slide is held by the spring 42 bearing on the inclined face at the left of the cam 4I.

35 are defined by the ends of the hole 43.

The selective operation of my device will now 10 be described. Assume first that the machine is to be used for folding. In this case that the slide 35 is in the position illustrated in Figs. 1, 3 and 4 in which the handle 3'I is pulled out and the largeV holes 39 of the slide are inline with the 15 punches 2G. In the initial position, Fig. 2, the handle 'I is elevated by the springs 9 until it is arrested by the ends I5 of the paper-holding bar I3 engaging below the lower lugs I6 on the brackets 5; Sheets 45, Fig. 6, are now placed 20 on top of the base I and on the slide 35, and the handle 'I is depressed, as shown in Fig. 6. In this case, tongues 46 (Fig. 8)` are punched from the sheets, and threaded through the slits 4'I for connecting the sheets. Depression of the 25 handle 'I causes the bar I3 to bear on the sheets 45 with its ends I5, and the punching means and connecting mechanism, i. e., the punches 25 andV the slitting knives 28, to descend through the large holes 39 in the slide 35. The downward 30 movement of the barV I3, with its ends I5, occurs as follows: The stay I0 on the handle moves down in the slotted holes I4 of the links I 4 so that the spring I2 which is supported by the indicator H, is able to move down the bar I3 35 and to apply its ends I5 to the sheets 45.

The Vpunches 20 form tongues 45 from the sheets while the knives 28, being entrained by springs 32 on the punches 2D, and, if any great resistance be met, by lugs 30, make the slits 41. 40 The upper points 25 strike the dogs 48 on the ends I5 of bar I3, causing the folders 24 to turn about their pivots 23 and to fold down the tongues 45 through the holes 29 in the knives 28.

When the handle 1 is released, the springs 9 45 immediately return the handle into its initial position, Fig. 2, and the stay I D entrains the punches 20 in upward direction. The punches, in turn, entrain the slitting knives 28 through lugs 30. At the same time, the bar I3 is returned 50 to its initial position in which its ends I5 engage the lower lugs I6 on the brackets 5, through links I4 and against the action of spring I3 which is overcome by the stronger springs 9. The movement of the handle 1 into its initial position is limited by the ends I5 of bar I3, and the lugs I6. During'the upward movement, the slitting knives 28 augment the threading of the tongues 46 through slits 41, and the sheets 45 are connected. Preferably, the sheets are extracted while the bar I3 still bears on them, so that the bar flattens down the projecting ends of the tongues.

If the machine is to be used as a perforator for punching sheets, the slide Vis pulled by its handle 36 and the handle moved into the'position shown in dot-and-dash lines in Fig. 4, in the direction of arrow 38. The smaller holes 40 are now presented to the punching and connecting means, as shown in Fig. 5. The corresponding position of parts after performing a punching operation is shown in Fig. 7. Upon depression of handle 1, from its initial position,Fig. 2, into its nal position, Fig. 7, the bar I3 is applied to the sheets with its ends I5, as described and the punches 20 descend with the knives 28. However, after a 75 certain time, the edges of the slitting knives 28 encounter the slide 35, or the sheets which are on the slide and on the top plate of base l, and in turn, through lugs 30 and slots 3l, limit the descent of the punches 20. The consequence is that only the front portion of the cutting edges of punches 20 act on the sheet, or sheets, and only holes 50 as shown in Fig. 9 are punched. The lower ends of the slitting knives 28 are pointed, as shown at the left in Fig. 1, and therefore effect a certain amount of indentation on the paper but do not pierce because the paper being on top of the slide 35 will stop the knives 2B. This indentation, however, is so small that it does not weaken in any way the web of paper which is between the straight outer edge of each hole 50, Fig. 9, and the adjacent edge of the sheet 49. The machine now operates like a normal perforator. The springs 9 return all parts into their 'initial positions when the handle 1 is released.

The machine operates as a perforator until handle 31 is pulled out to move the slide 35 into the position of Figs. l, 3, and 4.

I claim:

l. In a combined paper punching and folding machine, means for punching, and means for slitting, folding and interlocking, sheets of paper, means for operating said punching means and said mechanism, means for rendering inactive said mechanism, and means for limiting the movement of said punching means through the inactive mechanism.

2. In a combined paper punching and folding machine, means for punching, and mechanism for slitting, folding and interlocking sheets of paper, means for operating said punching means and said mechanism, means for arresting said mechanism, and means for limiting the movement of said punching means through the arrested mechanism.

3. In a combined paper punching and folding machine, perforating punches, mechanism for slitting, folding and interlocking sheets of paper mounted to be displaced on said punches, means for operating said punches and said mechanism, means for arresting said mechanism against movement with said punches, and means for limiting the stroke of said punches through the arrested connecting means.

4. In a combined paper punching and folding machine, means for punching, and mechanism for slitting, folding and interlocking, sheets of paper, means for operating said punching means and said mechanism, and a slide mounted to be displaced on said device, with a set of holes which are so large as to permit said punching means and said mechanism to pass through them, and

another set of holes which are so small that said mechanism is retained by said slide.

5. In a combined paper punching and folding machine, means for punching, and mechanism for slitting, folding and interlocking sheets of paper, means for operating said punching means and said mechanism, a slide mounted to be displaced on said device, with a set of holes which are so large as to permit said punching means and said mechanism to pass through them, and

another set of holes which are so small that said mechanism is retained by said slide, and means for holding said slide in the twopositions in which one or the other set of holes is presented to said punching means and said mechanism.

6. In a combined paper punching and folding machine, means for punching, and mechanism for slitting, folding and interlocking, sheets of paper, a base plate on which said means are mounted, means for operating said punching means and said mechanism, a slide mounted to be displaced on said base plate, with a set of holes which are so large as to permit said punching means and said mechanism to pass through them, and another set of holes which are so small that said mechanism is retained by said slide, a cam on said slide which cam extends through said base plate, and a spring anchored on said base plate and adapted to hold said slide in the two positions in which one or the other set of holes is presented to said punching means and said mechanism.

'7. In a combined paper punching and folding machine, perforating punches a folder on every punch, a slitting knife mounted to slide on every punch, a spring connecting said punch and said slitting knife, means for operating said punches, and a slide mounted to be displaced on said device, With a. set of holes which are so large as to permit said punches and knives to pass through them, and another set of holes which are so small that said knives are retained by said slide.

8. In a combined paper punching and folding machine, means for punching, and mechanism for slitting, folding and interlocking sheets of 40 paper, a base plate on which said means are mounted, a handle for operating said punching means and said mechanism, a movable paperholding bar, a spring anchored on said base plate for holding said bar down on said base plate, links on said bar with slotted eyes forconnecting said bar to said handle, and means for rendering inactive said mechanism.

9. In a combined paper punching and folding machine, a punch, means for operating said 5o punch, mechanism for slitting, folding and interlocking sheets of paper, and means for rendering said machine selectively operable as a punching and a folding machine.

10. In a combined paper punching and folding machine, a punch, means for operating said punch, mechanism for slitting, folding and interlocking sheets of paper which mechanism is operatively connected to said punch, and positive means for rendering said machine selectively operable as a punching and a folding machine.

FRITZ ROEDER. 

